No longer need to suppress warning

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@829684 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/commons/lang/ArrayUtils.java

@@ -173,7 +173,6 @@ public class ArrayUtils {
      * @param stringIfNull  the String to return if the array is <code>null</code>
      * @return a String representation of the array
      */
-    @SuppressWarnings("unchecked")
     public static String toString(Object array, String stringIfNull) {
         if (array == null) {
             return stringIfNull;